RESIDENTIAL REMODELS ADDITIONS AND ALTERATIONS PLAN CHECK SUBMITTAL RESIDENTIAL ADDITIONS/ALTERATIONS Design Criteria Seismic Design Category D (Most cases) Basic Wind Speed 85 mph Exposure B or C Maximum rain intensity (1-1/2 per hour) 2013 Edition of the CEC, 2013 Editions of the CBC, 2013 Edition of the CPC, CMC and 2013 Edition of the CFC; and City of Rohnert Park Municipal Code Title 15. California Code of Regulations Title 24 Accessibility Regulations Soils Report per IBC Section 1802A.2 2013 CEC Energy Efficiency Standards, Climate Zone 2 Residential Fire Sprinklers per NFPA and Rohnert Park Municipal Code Title 15, Chapter 15.28 Drawing Criteria Please submit (7) complete sets of legible building plans & (2) sets of structural and/or energy calculations, if applicable. Preferably, drawing shall be limited in size to 24 by 36 inches maximum. Plans must be clear and legible; illegible plans will not be accepted. Preferred scale; ¼ inch per foot for structural and architectural; 1 inch = 20 feet for site plans. Plans must be wet signed by preparer on each page unless prepared by owner. Architects/Engineers must affix their seal and wet sign every page of drawing for which they are responsible (only cover sheet of supporting documents or calculations needs to be stamped & wet signed.) \\M:drive\Handouts\Residential Handout.doc Rev 1/1/14
Required Submittal Plan Documentation General Information /Building Analysis cover sheet(s) Project name and address as well as project owner s name, address, and phone number (contact person) Name, title, address, and phone number of architect or engineer of record Assessor s parcel number Total square footage of building and improvements (existing and new) Vicinity map, location and north arrow Stamp and wet signature of design professional (all sheets) if applicable Conditioned floor area Electrical service equipment size Plot/Site Plan Lot dimension showing entire parcel and property lines Building footprint (provide dimensions to property lines and adjacent buildings) Identify building orientation with north arrow Direction arrows showing drainage on property Show location of electric meters/service, water supply shutoff, building sewer cleanout, driveway, gas meters, and easements, right-of-ways, etc. When submitting plans for an addition the designer must provide calculations on the plot plan sheet to show that the addition complies with the Zoning Ordinance requirements for Floor Area Ratio. Pad elevation (certification of the pad elevation and soils compaction test results for the pad construction, is required.) Drainage pattern(s) including erosion and sediment control measures Top of curb elevations Slopes and retaining walls Existing and/or new frontage improvements (curb, gutter, sidewalk, fire hydrants, street lights, catch basins, etc.) Sewer lateral, water service(s) Property line dimensions Building setback lines Reference topography datum North arrow with bar scale Reference applicable City of Rohnert Park construction standards Architectural/Structural Plans Floor plan (show each floor drawn to scale and fully dimensioned for new and existing) Show size of all openings, show existing windows to be removed, indicate direction of door swing Show location of all stairways Identify uses of all rooms Reference to section details Show location and type of occupancy separations Show locations of items (walls, etc) to be demolished 2
Floor/Wall/Roof framing plans (including truss layout) Exterior Elevations Details (architectural/structural) Cross sections Bracing Details Framing Details Handrails and guardrails along with support details Stair details Structural material specifications Flashing Details Door/window schedules (list size and type) Show tempered window locations on elevations Footing details (piers, grade beams, etc) Structural connections (hold downs, straps, etc) Tie-in connections for footings Fire-resistive assemblies and associated penetration details Tie-in connection details for roof and walls Electrical Plans Electrical load calculations and panel schedule for existing and proposed loads. Provide electrical panel schedule for new equipment. Floor plan showing all electrical item locations which include lighting & switching, receptacles and GFCI receptacles, mechanical equipment and disconnects, distribution panel locations, and exit signage/lighting locations Show location of electric service panels. List of kitchen light fixtures showing that more than 50% of the total connected load are high-efficacy fixtures Ceiling plan (if necessary) showing all ceiling fixtures, diffusers, and registers. Plumbing and Mechanical plans as necessary. Green Building Ordinance All residential additions are subject to the requirements of the CALGREEN requirements A copy of the Pre-permitting Application must be printed on the plans and submitted as a separate 8.5 x 11 document. A copy of the Cal Green Building Checklist must be printed on the plans and submitted as a separate 8.5 x 11 document. OTHER SUBMITTAL REQUIREMENTS Two sets of structural calculations, when required, stamped and signed by California licensed architect or registered engineer. Two sets of truss calculations, when required, stamped and signed by California licensed architect or registered engineer. Two sets of energy calculations, signed by designer and/or owner Energy Calculations not required for additions less than 100 sq. ft. provided: 3
Ceiling Insulation min. R-30 Wall insulation min. R-13 Floor insulation min. R-19 All windows have a maximum U-factor of 0.57 and a maximum SHGC (Solar Heat Gain Coefficient) of 0.40. Window labels must be left on windows until after inspection. New glazing area is less than 50 ft 2 Radiant barriers are installed under the roof sheathing. One 8-1/2 X 11 (or same size as architectural drawings) floor plan for Assessor Floor plan depicting scaled dimensions Site/Plot Plan Copy of Health Department approval (if applicable) Planning Department approval (Use permit, Planning Commission resolution, etc) Asbestos documentation Special inspection form (if applicable, to be filled out by the Engineer of record) Soils Report Floor plan depicting scaled dimensions Site/Plot plan Residential Additions that add more than 50% of the original floor area of the building, including all floor levels and garage, must retrofit the entire house with a fire sprinkler system. Newly constructed detached residential garages and detached accessory structures, 200 sq. ft. or more in area, require the installation of a fire sprinkler system. Contact Fire Services for further details. Notes: Multiple pieces of information can be combined on plans for simple buildings if clarity is maintained. This is not a complete list of all required submittals, and additional information may be required to facilitate plan review. Other City departments and/or public agencies may have to review and approve plans before permits can be issued. The scope of work involved with residential improvements varies greatly. In some situations, many of the drawings and much of the detailing outlined above may not be necessary. Please feel free to contact our Building Department staff for more specific direction or clarification. It is strongly recommended that you and/or your designer discuss your proposed project with staff representatives from the Planning and Engineering Departments before commencing with design documents and plans. The presence of right-of ways, setbacks, and requirements for floor area ratios may have an adverse impact on your project. 4
Departments and Agencies to Contact if Questions Arise on Specific Requirements Department Responsibility Phone No. Building Division Plan review, building permits, and inspections 588-2240 Finance Business license 585-6725 PG&E: Gas and Electric Services Petaluma Office Area South of E. Cotati Ave 765-5170 Santa Rosa Office Area North of E. Cotati Ave 579-6477 Fire Services Plan review and inspections 584-2641 Planning Department Use permits, signs, and zoning 588-2236 Engineering Grading/drainage permits, encroachments 588-2251 Cotati-Rohnert Park School Impact Fees School District 792-4744 Bellevue Union School Impact Fees School District 542-5197 Sonoma County Health Department Restaurants, Environmental Health 565-6531 Santa Rosa Industrial Waste Waste Water Discharge Permits 543-3369 Bay Area Air Quality Management District Asbestos permits, air quality 415-771-6000 Web Pages Address Bay Area Air Quality Management District Asbestos permits, air quality www.baaqmd.gov City of Rohnert Park www.rpcity.org Contractors License Board Contractors License Check www.cslb.ca.gov Foundation plan/foundation Policy for Additions Soils reports are not required for residential additions less than 500 sq. ft. of footprint area unless specifically required by the Building Official. Foundations for residential additions that are greater than 500 sq. ft. of footprint area require a current geotechnical report unless specifically exempted by the Building Official. The type of foundation system used for a residential addition is to be the same type and construction as the foundation for the original structure, unless specifically exempted by the Building Official. Applicants, who claim to have a standard T foundation or slab on grade foundation, must expose a portion of the existing foundation for verification by the City s building inspector prior to obtaining a building permit. An inspection will have to be made by the Building Department to verify the findings. An additional inspection fee must be paid by the applicant prior to any inspection by the Building Department. The designer, owner, or contractor is to provide evidence of pier and grade-beam foundation details. This may be done by referring to City records (if available), by copies of original plans, or by site investigation. As an alternative, when a pier and grade-beam foundation is used, it may be constructed consisting of a min 12 diameter pier, 5 o.c. (4 o.c. for two-story), 7 deep with two #5 rebar the full depth of the pier. The grade beam shall be a minimum 6 wide x 16 deep with one #5 rebar at both the top and bottom. However, this default design may be used only when the addition is constructed using the Conventional Light-Frame 5
Construction provisions of the Code (Section 2320), or when engineering calculations show that this design will support the design loads. Residential additions of any size to an existing building that do not utilize a pier and grade-beam system must be designed by a registered engineer or licensed architect, unless specifically exempted from doing so by the Building Official. All residential additions for structures constructed on post-tension slabs require a design by California Registered Engineer or licensed Architect. 6